Ottawa Ankle Rules
Does this ankle injury require an x-ray?
The Ottawa ankle rules have been validated in adults with 100% Sensitivity.
In children ages 1-15 the Ottawa Ankle rules have been validated with 98-100% Specificity and 36-47% Sensitivity for clinically significant ankle injuries, however other studies have suggested lower sensitivity rates. Clinical judgment should be used in younger children.
Libetta et al.
Plint et al.
Stiell et al.